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AWS BNi-5a vs. Grade CW6M Nickel

Both AWS BNi-5a and grade CW6M nickel are nickel alloys. They have 80% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-5a and the bottom bar is grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
84
Tensile Strength: Ultimate (UTS), MPa 480
560

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Melting Completion (Liquidus), °C 1150
1530
Melting Onset (Solidus), °C 1070
1470
Specific Heat Capacity, J/kg-K 500
430
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
65
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 9.0
13
Embodied Energy, MJ/kg 130
170
Embodied Water, L/kg 260
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
17
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 1.0 to 1.5
0
Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 18.5 to 19.5
17 to 20
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
0 to 3.0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
17 to 20
Nickel (Ni), % 70.1 to 73.5
54.9 to 66
Phosphorus (P), % 0 to 0.020
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.0 to 7.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0 to 0.050
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0